Box



R. M. LACKEY Dec. 19, 1933.

BOX

Fiiea March 25, 1932 INVENTOR Robert M Lackey BY HIS A'ITORNEW EliPatented Dec. 19, 1933 Y UNITED STATES PATENT" FOFFICE r 1 Claim.

This invention relates to improvements in boxes, and more particularlyto box comers.

Objects structure adaptable to various types of mate rial, andespecially to card-board of either heavy or light weight texture; tosimplify the cutting of the blank from which the body portion of the boxis folded; to provide a means stronger than the body portion of the boxfor locking the corners together; to obtain a reinforcement of the boxin a direction from top to bottom;

to secure simplicity of construction and, operation; and to obtain otheradvantages and results as may be brought out in the followingdescription.

Drawing Figure 1 is a perspective view of a box embodying my invention;

Figure 2 is an elevation of the pair of locking "members;

Figure 3 is an elevation of the locking members in partly assembledrelation;

Figure 4 is a plan of the same;

I} Figure 5 is an elevation of the locking members -in completelyassembled relation; and

Figure 6 is a sectional view shown as taken on line 6-6 of Figure 5.

Description As seen in the drawing, the box provides a bottom wall 10and side walls 11 upstanding therefrom and intersecting as usual at thefour corners of the box. The ends of the side walls are preferablystraight and have a substantially abutting engagement with each other,that is to say, are not provided with an extra length to be foldedaround the corner for obtaining a lap joint. i

In order to secure these meeting comers of the side walls of the box inassembled condition, I provide a pair of locking members for eachcorner. One such pair of locking members is shown in Figure 2, and oneof these members designated by numeral 13 provides a longitudinal edgehaving a plurality of tongues or tabs 14 formed by the pair of members.

projecting therefrom in parallel relationship to each other. The othermember designated'by numeral 15 is provided with a plurality of slots 16arranged endwise in a row and of proper size and spacing to receive theseveral tabs 14 of the other member 13. It may be observed that thesemembers are both of substantially the same height and are likewise ofsubstantially the same height as the side walls 11 of the box.

When the tabs 14 are inserted in the slots 16, the members 13 and 15will be at right-angles to each other as clearly shown in Figures 3 and4. The tabs may then be folded down against the member 15 through whichthey project and the margin of said member 15 projecting away from thefolded ends of the tabs may be folded down against the other member 13as clearly shown in Figures 5 and 6. These folds may, however, be madeotherwise if found more desirable.

The members 13 and 15 are secured to the end portions of the meetingwalls of the box so that the right-angle formed by the said walls isincluded immediately within the right-angle Said members are secured tosuitable adhesive or other desired securing means, such as spurs 15'.

While I have described the assembly of the locking members prior todescribing the attachment of said members to the box walls, it is to beI, understood that I do not confine myself to this order of assembly,and in fact, I prefer to secure the locking members to the walls priorto assembling said members with respect to each other. The fact thatsaid members have a height substantially equal to the height of the box,enables thesame to be applied in proper relationship so as to be assuredof proper fitting of the tabs 14 with respect to slots 16. Furthermore,the edge of the member 13 at the base of the tabs will be positionednext to the edge of the side wall, and the slots 16 in the other member15 will be positioned adjacent the end edge of the other side wall thusaffording a gauge by which both members may be conveniently assembled bymachine or otherwise.

The said members 13 and 15 are preferably of metal and, because of thatfact, will provide a degree of reinforcement for the corners of the box,the value of which is enhanced by reason of the said members having aheight substantially equal to the height of the box wall. The metalforming the said locking members may be of relatively light weight andstill accomplish the purposerfor which said members are provided. It mayfurther be noted that the fact the slots 11 0 16 are aligned produces anatural line upon which member 15 containing those slots will be readilybent when folding the same to assembled position.

I claim:

A box as characterized providing a pair of walls meeting at end edges, apair of locking members of which one member is attached to one of saidwalls at the end edge thereof and provides alined slots forming a lineof bending of said member

